kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 31869 Comm: syz-executor.5 Not tainted 4.19.34 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:xs_net include/net/xfrm.h:253 [inline] RIP: 0010:xfrmi_decode_session+0xeb/0x630 net/xfrm/xfrm_interface.c:82 Code: 7c e7 10 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 fd 04 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 64 e7 10 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 2c 05 00 00 4d 8b 3c 24 e8 92 eb 66 fb e8 ad 42 RSP: 0018:ffff888060b0f120 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88808fb8a840 RCX: ffffc900108cc000 RDX: 0000000000000000 RSI: ffffffff85f1f405 RDI: ffff888083423788 RBP: ffff888060b0f148 R08: ffff8880a9ae8180 R09: ffffed1015d04733 R10: ffffed1015d04732 R11: ffff8880ae823993 R12: 0000000000000000 R13: 0000000000000037 R14: ffff88808fb8a850 R15: ffff888083423780 FS: 00007f08346c6700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f02281e1a90 CR3: 0000000095196000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __xfrm_policy_check+0x1fa/0x2560 net/xfrm/xfrm_policy.c:2342 kobject: 'loop4' (00000000e4ef4b0b): kobject_uevent_env kobject: 'loop4' (00000000e4ef4b0b): fill_kobj_path: path = '/devices/virtual/block/loop4' __xfrm_policy_check2 include/net/xfrm.h:1196 [inline] xfrm_policy_check include/net/xfrm.h:1201 [inline] xfrm6_policy_check include/net/xfrm.h:1211 [inline] vti6_rcv+0x4b9/0x960 net/ipv6/ip6_vti.c:316 xfrm6_esp_rcv+0xd8/0x230 net/ipv6/xfrm6_protocol.c:74 ip6_input_finish+0x374/0x1810 net/ipv6/ip6_input.c:383 kobject: 'loop2' (0000000005455104): kobject_uevent_env NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip6_input+0xe4/0x3f0 net/ipv6/ip6_input.c:426 kobject: 'loop2' (0000000005455104): fill_kobj_path: path = '/devices/virtual/block/loop2' dst_input include/net/dst.h:450 [inline] ip6_rcv_finish+0x1e7/0x320 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ipv6_rcv+0x119/0x430 net/ipv6/ip6_input.c:271 __netif_receive_skb_one_core+0x115/0x1a0 net/core/dev.c:4918 __netif_receive_skb+0x2c/0x1d0 net/core/dev.c:5028 netif_receive_skb_internal+0x117/0x520 net/core/dev.c:5131 napi_frags_finish net/core/dev.c:5674 [inline] napi_gro_frags+0x623/0xa30 net/core/dev.c:5747 tun_get_user+0x2edb/0x4bb0 drivers/net/tun.c:1936 tun_chr_write_iter+0xbd/0x156 drivers/net/tun.c:1982 call_write_iter include/linux/fs.h:1811 [inline] do_iter_readv_writev+0x55d/0x830 fs/read_write.c:680 do_iter_write fs/read_write.c:959 [inline] do_iter_write+0x184/0x600 fs/read_write.c:940 vfs_writev+0x1b3/0x2f0 fs/read_write.c:1004 do_writev+0xf6/0x290 fs/read_write.c:1039 __do_sys_writev fs/read_write.c:1112 [inline] __se_sys_writev fs/read_write.c:1109 [inline] __x64_sys_writev+0x75/0xb0 fs/read_write.c:1109 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4581b1 Code: 75 14 b8 14 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 e4 b9 fb ff c3 48 83 ec 08 e8 1a 2d 00 00 48 89 04 24 b8 14 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 63 2d 00 00 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007f08346c5ba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 0000000000000046 RCX: 00000000004581b1 RDX: 0000000000000001 RSI: 00007f08346c5c00 RDI: 00000000000000f0 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 00007f08346c69d0 R11: 0000000000000293 R12: 00007f08346c66d4 R13: 00000000004c697a R14: 00000000004dc270 R15: 00000000ffffffff Modules linked in: ---[ end trace 7fbf29afdd28c079 ]--- RIP: 0010:xs_net include/net/xfrm.h:253 [inline] RIP: 0010:xfrmi_decode_session+0xeb/0x630 net/xfrm/xfrm_interface.c:82 Code: 7c e7 10 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 fd 04 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 64 e7 10 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 2c 05 00 00 4d 8b 3c 24 e8 92 eb 66 fb e8 ad 42 RSP: 0018:ffff888060b0f120 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88808fb8a840 RCX: ffffc900108cc000 RDX: 0000000000000000 RSI: ffffffff85f1f405 RDI: ffff888083423788 RBP: ffff888060b0f148 R08: ffff8880a9ae8180 R09: ffffed1015d04733 R10: ffffed1015d04732 R11: ffff8880ae823993 R12: 0000000000000000 R13: 0000000000000037 R14: ffff88808fb8a850 R15: ffff888083423780 FS: 00007f08346c6700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f02281e1a90 CR3: 0000000095196000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400